Just for stuff and giggles, I followed the Instalink to the list of 2005's 10 Sexiest Geeks. I've never heard of most of them, but I did find it good news that a world class salt-and-pepper beard is a factor. Despite the current spell of cold weather, I'll hold off a little longer on any more than a detail trim.
Update:
I meant the current spell of warm weather. I typically trim my beard with an electric trimmer during the summer, then let it grow out and just touch it up with scissors during the winter. I've demonstrated, with the aid of thermal imaging systems at trade shows, that it truly does retain body heat.